Browsing by Author "Roy, Rajkumar"

Browsing by Author "Roy, Rajkumar"

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  • Optimisation of the High Efficiency Deep Grinding Process with Fuzzy Fitness Function and Constraints. 
    Jones, Phil; Tiwari, Ashutosh; Roy, Rajkumar; Corbett, John (2004-06-01)
    This paper describes the application of two multi-objective optimisation techniques to the high efficiency deep grinding process. The process is modelled using a fuzzy expert system. This allows understanding gained ...
  • Optimising customer support in contact centres using soft computing approach 
    Shah, Satya Ramesh; Roy, Rajkumar; Tiwari, Ashutosh (2006-10-31)
    This paper describes the research and development of a methodology for optimising the customer support in contact centres (CC) using a soft computing approach. The methodology provides the categorisation of customer and ...
  • Overview of Remaining Useful Life prediction techniques in Through-life Engineering Services 
    Okoh, Caxton; Roy, Rajkumar; Mehnen, Jorn; Redding, Louis E. (Elsevier, 2014-06-30)
    Through-life Engineering Services (TES) are essential in the manufacture and servicing of complex engineering products. TES improves support services by providing prognosis of run-to-failure and time-to-failure on-demand ...
  • Predictive maintenance modelling for through-life engineering services 
    Okoh, Caxton; Roy, Rajkumar; Mehnen, Jorn (Elsevier, 2017-03-02)
    Predictive maintenance needs to forecast the numbers of rejections at any overhaul point before any failure occurs in order to accurately and proactively take adequate maintenance action. In healthcare, prediction has been ...
  • Process and knowledge management in a collaborative maintenance planning system for high value machine tools 
    Wan, Shan; Li, Dongbo; Gao, James X.; Roy, Rajkumar; Tong, Yifei (Elsevier, 2016-11-17)
    Product manufacturers are extending their responsibilities in the whole life cycle by providing services to their customers. In recent years, product service system has become an important research topic to address the ...
  • Product-Service Systems across Industry Sectors: Future Research Needs and Challenges 
    Durugbo, Christopher; Bankole, O. O.; Erkoyuncu, John Ahmet; Tiwari, Ashutosh; Alcock, Jeffrey R.; Roy, Rajkumar; Shehab, Essam (2010-04-15)
    This paper explores the current research in Product-Service Systems (PSS) across various industries suchas industrials, basic materials, utilities, and financials, based on the Industry Classification Benchmark (ICB).PSS ...
  • Quantifying uncertainty in pulsed thermographic inspection by analysing the thermal diffusivity measurements of metals and composites 
    Addepalli, Sri; Zhao, Yifan; Erkoyuncu, John Ahmet; Roy, Rajkumar (MDPI, 2021-08-14)
    Pulsed thermography has been used significantly over the years to detect near and sub-surface damage in both metals and composites. Where most of the research has been in either improving the detectability and/or its ...
  • Railway Renewal and Maintenance Cost Estimating 
    Ling, Daniel (Cranfield University, 2005)
    The aim of this thesis is to present a structured methodology which estimates Railway Infrastructure renewal and maintenance costs when there is a lack of quantitative cost data at the early stages of the project life ...
  • Requirements management: an enabler for concurrent engineering in the automotive industry 
    Kerr, C. I. V.; Roy, Rajkumar; Sackett, Peter J. (Taylor & Francis, 2006-05-01)
    Defining and agreeing the product requirements is especially important when the design and manufacture of a system is part of an Extended Enterprise. To realize an all-inclusive concurrent engineering process, tools for ...
  • A review of multi-criteria decision making methods for enhanced maintenance delivery 
    Sabaei, Davood; Erkoyuncu, John Ahmet; Roy, Rajkumar (Elsevier, 2015-10-09)
    Conventionally there is a strong relation between manufacturing and services in complex engineering industries. For companies which aim to last in the competitive manufacturing market choosing appropriate decision making ...
  • A review of rolling system design optimisation 
    Oduguwa, Victor; Roy, Rajkumar (Elsevier, 2006-06)
    Rapid product development and efficient use of existing resources are key competitive drivers in the steel industry and it is imperative that solution strategies are capable of delivering high quality solutions at low cost. ...
  • Rolling system design using evolutionary sequential process optimisation 
    Tiwari, Ashutosh; Oduguwa, Victor; Roy, Rajkumar (IEEE, 2008-04-01)
    The design of a rolling system is a multistage process optimization problem involving sequential relationship between consecutive stages. This relationship is peculiar to sequential processes in which the output stock ...
  • Secure IoT Devices for the Maintenance of Machine Tools 
    Tedeschi, Stefano; Mehen, Jorn; Tapoglou, N.; Roy, Rajkumar (Elsevier, 2017-03-02)
    Through the Internet of Things (IoT) interaction between objects becomes possible in a way we have never seen before. With the advent of IoT and its introduction into almost all aspects of life, safety and security of IoT ...
  • Security aspects in cloud based condition monitoring of machine tools 
    Tedeschi, Stefano; Mehnen, Jorn; Tapoglou, Nikolaos; Roy, Rajkumar (Elsevier, 2015-10-27)
    In the modern competitive environments companies must have rapid production systems that are able to deliver parts that satisfy highest quality standards. Companies have also an increased need for advanced machines equipped ...
  • Self-reconfiguration simulations of turbines to reduce uneven farm degradation 
    Brooks, Sam; Mahmood, Minhal; Roy, Rajkumar; Manolesos, Marinos; Salonitis, Konstantinos (Elsevier, 2023-03-06)
    This study explored the concept of a floating offshore wind farm (FOWF) that self-reconfigures wind turbine (WT) positions. The self-reconfiguration (SR) mechanism moves degraded turbines to different farm positions to ...
  • Semantic based approach for knowledge management 
    Sanya, Isaac (Cranfield UniversitySAS, 2009-09)
    Companies are beginning to understand the importance of the management and maintenance of knowledge resources. One of the main constraints that have hindered the solution to resolving technical problems has been the ...
  • Semantic Knowledge Based Approach for Product Maintenance Support 
    Sanya, Isaac; Shehab, Essam; Roy, Rajkumar; Houseman, O.; Jonik, M. (2010-04-21)
    The purpose of this paper is to use semantic technology to represent the knowledge for product maintenance . Companies are begining to understand the importance of utilising an effective approach to manage existing ...
  • Sequential process optimisation using genetic algorithms 
    Oduguwa, Victor; Tiwari, Ashutosh; Roy, Rajkumar (Springer-Verlag, 2004-01)
    Locating good design solutions within a sequential process environment is necessary to improve the quality and overall productivity of the processes. Multi-objective, multi-stage sequential process design is a complex ...
  • Service and manufacturing knowledge in product-service systems: a case study 
    Doultsinou, Athanasia; Baxter, David; Roy, Rajkumar; Gao, James X.; Mann, A. (Cranfield University Press, 2009-04-01)
    In the developing Product-Service Systems (PSS) field, an emerging research challenge is supporting the PSS design activity. This paper presents a case study in which manufacturing and service knowledge is captured and ...
  • Service knowledge capture and re-use to support product design 
    Doultsinou, Athanasia (Cranfield University, 2010-05)
    A significant change is taking place in manufacturing company strategies around the globe. With new monitoring and service methods, new opportunities of product use and service provision emerge. The manufacturing companies ...